JP2024102290A5 - - Google Patents
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- JP2024102290A5 JP2024102290A5 JP2024076770A JP2024076770A JP2024102290A5 JP 2024102290 A5 JP2024102290 A5 JP 2024102290A5 JP 2024076770 A JP2024076770 A JP 2024076770A JP 2024076770 A JP2024076770 A JP 2024076770A JP 2024102290 A5 JP2024102290 A5 JP 2024102290A5
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- JP
- Japan
- Prior art keywords
- mol
- content
- less
- magnetic recording
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000011521 glass Substances 0.000 claims 6
- 239000000758 substrate Substances 0.000 claims 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 1
- 229910018068 Li 2 O Inorganic materials 0.000 claims 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims 1
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 claims 1
- 230000009477 glass transition Effects 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 125000006850 spacer group Chemical group 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202163157134P | 2021-03-05 | 2021-03-05 | |
| US63/157,134 | 2021-03-05 | ||
| JP2021160707 | 2021-09-30 | ||
| JP2021160707 | 2021-09-30 | ||
| JP2023503983A JP7488416B2 (ja) | 2021-03-05 | 2022-03-04 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| PCT/JP2022/009537 WO2022186393A1 (ja) | 2021-03-05 | 2022-03-04 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023503983A Division JP7488416B2 (ja) | 2021-03-05 | 2022-03-04 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2024102290A JP2024102290A (ja) | 2024-07-30 |
| JP2024102290A5 true JP2024102290A5 (enExample) | 2025-03-07 |
Family
ID=83154536
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023503983A Active JP7488416B2 (ja) | 2021-03-05 | 2022-03-04 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
| JP2024076770A Pending JP2024102290A (ja) | 2021-03-05 | 2024-05-09 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023503983A Active JP7488416B2 (ja) | 2021-03-05 | 2022-03-04 | 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20240158281A1 (enExample) |
| EP (1) | EP4303197A4 (enExample) |
| JP (2) | JP7488416B2 (enExample) |
| WO (1) | WO2022186393A1 (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112119047B (zh) * | 2018-05-16 | 2023-06-30 | Hoya株式会社 | 磁记录介质基板用玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置 |
| CN120957953A (zh) * | 2023-04-17 | 2025-11-14 | Ａｇｃ株式会社 | 玻璃 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY118912A (en) * | 1996-09-04 | 2005-02-28 | Hoya Corp | Glass for information recording medium substrate and glass substrate |
| JP2000063144A (ja) * | 1998-08-11 | 2000-02-29 | Asahi Glass Co Ltd | 情報記録媒体基板用ガラス |
| JP3995902B2 (ja) | 2001-05-31 | 2007-10-24 | Ｈｏｙａ株式会社 | 情報記録媒体用ガラス基板及びそれを用いた磁気情報記録媒体 |
| MY156297A (en) | 2009-08-10 | 2016-01-29 | Hoya Corp | Glass for magnetic recording medium substrate, magnetic recording medium substrate and method of manufacturing the same, and magnetic recording medium |
| WO2012001914A1 (ja) * | 2010-06-30 | 2012-01-05 | コニカミノルタオプト株式会社 | 情報記録媒体用ガラス基板 |
| US8885447B2 (en) | 2012-03-29 | 2014-11-11 | Hoya Corporation | Glass for magnetic recording medium substrate, glass substrate for magnetic recording medium, and their use |
| US8824248B2 (en) * | 2012-05-16 | 2014-09-02 | Hoya Corporation | Glass for magnetic recording medium substrate and usage thereof |
| SG11201601369TA (en) * | 2013-08-30 | 2016-03-30 | Hoya Corp | Glass substrate for information recording media |
| JP5900560B2 (ja) * | 2014-09-01 | 2016-04-06 | 旭硝子株式会社 | 基板用ガラスおよびガラス基板 |
| CN115072991B (zh) * | 2016-11-14 | 2024-07-19 | Hoya株式会社 | 磁记录介质基板用玻璃、磁记录介质基板、磁记录介质和磁记录再生装置用玻璃间隔物 |
| WO2018225725A1 (ja) * | 2017-06-09 | 2018-12-13 | Hoya株式会社 | 情報記録媒体基板用ガラス、情報記録媒体基板、情報記録媒体および記録再生装置用ガラススペーサ |
| CN112119047B (zh) * | 2018-05-16 | 2023-06-30 | Hoya株式会社 | 磁记录介质基板用玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置 |
| US11688424B2 (en) * | 2019-07-22 | 2023-06-27 | Hoya Corporation | Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus |
-
2022
- 2022-03-04 US US18/548,890 patent/US20240158281A1/en active Pending
- 2022-03-04 EP EP22763443.3A patent/EP4303197A4/en active Pending
- 2022-03-04 JP JP2023503983A patent/JP7488416B2/ja active Active
- 2022-03-04 WO PCT/JP2022/009537 patent/WO2022186393A1/ja not_active Ceased
-
2024
- 2024-05-09 JP JP2024076770A patent/JP2024102290A/ja active Pending
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